Supplemental stove-top.



FDE.

LEWIS FRIDLUND, OF WILLMAR, MINNESOTA.

SUPPLEMENTAL STOVE-TOP.'

Specification of Letters Patent.

Patented Jan. 9J, 1917.

Application filed July 15, 1915. Serial No. 40,025.

To all vwhom t may concern.-

Be it known that I, Lnwis FRIDLUND, a citizen of the United States, residing at VVillmar, in the county of Kandiyohi and State of Minnesota, have invented certain new and useful Improvements in Supplemental Stove-Tops; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention relates to supplemental tops for gas or other similar fuel burning stoves; and to this end it consists of the novel devices and combinations of devices hereinafter described and defined in the claim.

ln the accompanying drawings which illustrate the invention, like charactersindicate like parts throughout the several views. j

.Referring to the drawings: Figure 1 is a plan view of the improved supplemental stove top; Fig. 2 is a View partly in longitudinal vertical' section taken on the line f-g on Fig. 1, and partly in fragmentary side elevation illustrating a stove top onto which the supplemental stove top is mounted; Fig. 3 is a view correspondingto Fig. 2 with the exception that the supplemental stove top is moved into a different position and supported in part from the iioor; Fig. 4 is a transverse section taken on the line :v4- x4 on Fig. 3; Fig. 5 is a right hand elevation of the parts shown in Fig. 2, some parts being broken away; and Fig. 6 is a detail view in perspective of the anchor brackets for the floor-engaging leg, some parts being broken away and some parts being indicated by means of broken lines.

Of the parts of the main stove illustrated for the purpose of showing the supplemental stove top applied in working position, it is only necessary to note the top. 1 having a depending marginal flan-ge 2 spaced outward from the body of the stove, and the two open fuel burners 3 located under grates 4 which project above the upper surface of the top 1.

The improved supplemental stove top comprises a combustion chamber 5 and a heat distributing chamber 6 located in the same horizontal plane and having communication, one with the other. The two chambers 5 and 6 are, as shown, formed from upper and lower rectilinear members telescopically connected and constructed from sheet metal. rlhe upper of said members comprises a top plate 7 having a depending marginal flange 8, and the lower of said members comprises a bottom plate 9 and an upwardly projecting marginal' flange 10. It will be noted, by reference to Figs. 2 and 3, that the bottom plate 9 extends only under the distributing chamber 6, while its marginal flange 10 fits closely within the flange 8 throughout its entire length.

That portion of the flange 10 within the combustion chamber 5 iswidened and projects below the bottom plate 9,-and the inner transverse edge of said bottom plate 9 is bent laterally downward to afford a flange 11. rlhis flange 11, together with the widened portion of the flange 10, forms a depending extension 12 of the chamber. The combustion chamber extension 12 rests directly on the stove top 1 with one of the grates 4 projecting therein, and supports the heat distributing chamber 6 slightly above the stove top 1 a distance sufficient to clear the adjacent grate 4.

A horizontally adjustable leg 13 is provided for supporting the outer end portion of the heat distributing chamber 6 directly from the stove top 1. This leg 13, as shown, is in the form of a horizontal bar having its ends bent, first vertically upward and then horizontally outward. rlhe horizontal ends of the leg 13 are slidably mounted in guideways 14, rigidly secured to the bottom plate 9. Obviously, by sliding the leg 13 in the guideways 14, said leg may be set in a position to clear the adjacent grate 4.

ln the top plate 7 is formed a relatively large hole 15 and a relatively small hole 16. Said holes being located, the former, centrally over the combustion chamber 5, and the latter, centrally over the heat distributing chamber. 6. Removable covers 17y of the required size, are provided for the holes 15 and 16.. These covers 17 are each provided with a plurality of circumferentially spaced depending lugs 18, which engage depending flanges 19 surrounding the holes 15 and 16 and formed by bending the top plate 7 laterally downward. rThese flanges 19 afford reinforcements for the top plate 7.

Draft ports Q0 for the heat distributing chamber 6 are formed by punching a row or holes transversely in the top plate 7 at the outer end portion of said chamber. A dam* per 21 is provided for the ,ports 20, and, as shown, is in the form of a flat plate pivoted to the flange 8 for swinging movement in a horizontal plane. 4The damper 21 is operated by a hand piece 22 which engages cooperative notches 23 on the 'lange 8 for holding the damper in different positions.

Fig. 2 shows-the supplemental stove top arranged with the combustion chamber 5 located over one of the burners- 3 and the heat distributing chamber 6 located over the other of said burners. In this arrangement of the supplemental stove top, utensils placed over the holes 15 and 16 may be heated from the single burner located under the combustion chamber. I-Iearising from the active burner will strike the top plate 7 and utensil on the hole 15, andthen travel under said top plate into the heat distributing chamber 6. From thence the spent heat will pass outward through the draft ports 20. The movement of the heat through the draf-t orts 20 may be regulated or entirely out o f by the damper 2l. i

In Fig. 3, the supplemental stove top is arranged with its combustion chamber 5 located over the burner 3 at the right hand end of the stove top l. In this arrangement of the supplemental stove top, the capacity of the stove is increased by the projection of the heat distributing chamber 6 bodily outward from the stove. An adjustable legv 24 made up from telescopically connected members is provided for supporting the heat distributing chamber 6 from the Hoor. The members of the leg 24 are held in different longitudinal adjustments by a set screw 25. A head bar 26 is secured to the upper end of the leg 24 by a thumb nut-equipped Abolt 27. This head bar 26 is notched at its upper 1ongitudinal edge to receive and hold the outfl wardly projecting portion of the supplemental stove top. Y

The leg 24 is anchored to the stove and held in upright position by a pair of diverging arms 28. The converging ends of these arms 28 are secured to a lug 29 on the upper member of the leg 24 by a thumb nutequipped bolt 30, and their inner or diverging ends are provided with transversely eX- tended slots 31. These slotted ends of the arms 28 are arranged for interlocking engagement with notched lugs 32 on a twopart clamping bracket 33. As shown, this bracket 33 comprises a pair of folding membersv connected at their lower edges by a hinge 34 and are adapted to be clamped onto the flange 2 of the stove by a draw bolt 35 passed through alined .perfo-rations in the two members of the clamping bracket-33.

When itis desired to utilize all ofV the heat passing into the heat distributing chamber 6, the damper 2l maybe closed and a small grate (not shown) placed over the hole 16 to allow the spent heat to escape through said hole around the cooking utensil.

What I claim is:

The combination with a main stove top provided with lid openings and grates covering the lid openings and projecting above said top, of a supplemental top having commumcating combustion and distributing chambers, said co bustion chamber having downwardly extended flanges surrounding the grate of one of the Vlid openings, and a horizontally adjustable leg for supporting the distributing chamber.

In testimony whereof I afiX my signature in presence of two witnesses.

LEWIS .FRIDLUND Witnesses:

V.'E. FRIDLUND, N. W. LARsoN. 

